Met some girlfriends here Friday night around 6pm, though they arrived early to take advantage of a great happy hour (although my drink was ordered, and arrived before 6pm, I was somehow charged full price).
They split 2 baskets of the sweet potato fries. I found them limp and bland, and didn't care for the dipping sauce (mayo-ish).
What was fantastic was the burger. I got the Zinburger, and it arrived literally 2 minutes later, perfectly cooked. It was flavorful, juicy, and just amazing. Now and again the onion flavor poked through, though I never really tasted the cheese. In the end, I didn't miss it--the burget was that great.
The restaurant was family friendly with tons of kids around. It is also pretty loud (as sparse, cement-y restaurants tend to be). The menu is miniscule, but that's ok. Just stop in for a quick, reasonably priced bite to eat.